Safety car-heater



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SAFETY GAR EEATER.

-(No Model.)

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WTJVESSES.

UNITED STATES PATENT OFFICE.

MYRON -M. BUMPVUS, OF'RAWSONVILLE, MICHIGAN.

SAFETY CAR-H EATER.

SPECIFICATION forming part of Letters Patent No. 400,393, dated March 26, 1889.

Application iiled March 5, 1888. Serial No. 266.195. (No model.)

T0 all whom it may concern:

.De it known that I, MYRON M. BUMPUS, a citizen of the United States, residing at Rawsonvll'le, county of Wayne, State of Michigan, have invented a certain new and useful Improvement in Safety Car-Heaters; and I declare the following to be a full, clear, and exact description of the same, such as will enable o thers skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, which forms a part of this specification.

The object of my invention is to provide a novel and efficient fire-extinguishing device for car-heaters, and this I accomplish by providing the said heater with a chemical 1ireextinguisher so located and connected that upon any shock sufcient to tilt the stove and throw itover, or such as would dislodge it in any way from its position, whereby it might otherwise become a source of danger by tire, the said chemical fire-extinguisher will be brought into action and discharge its contents directly upon the bed of fuel in the combustion-chamber.

In the drawing the figure is a sectional View of a car-heater embodying my invention.

In carrying out my invention, A represents the floor of any car, upon which my safetyheater is located.

B is the shell of the heater. This I would usually make of boiler-iron, so as to withstand severe shocks without being burst open, and upon the interior of this shell I locate my fire-pot C, and this I would usually supply with fuel through a magazine, D.

B is a door for gaining access to the firepot.

B2 is the ash-pit door.A

C is a partition separating the combustionchamber or fire-pot from the lower part of the stove.

D is a shield firmly secured in any convenient way to the top of the stove-as, for instance, by a pivoted bolt, D2. This shield D is provided with an opening, d. By turning this shield about the bolt as a pivot it maybe made to. register with the opening d of the magazine, but when revolved to one side it effectually closes the magazine, and may, if desired, be provided with a latch, D3, whereby it is locked in this closed condition, the said latch serving also as a handle to assist in revolving the shield about its pivot.

E is a chamber beneath the fire-pot. Within this chamber is located a chemical fire-extinguisher of any suitable character-as, for in stance, a retort, F-containing a charge of al kaline water, and a receptacle, F', containing acid. Pipes flead from the retort F up to and have their ends directed in over the bed of fuel in the fire-pot. Valves f are provided inthe said pipes, and a similar valve, f2, is provided in the conduit F2, which connects the acidechamber with the alkaline -water chamber.

F3 represents rods connected with the said valves for operating the same. These rods project down through the base of the stove,

and are fastened by threads or in any other convenient way secured to th'e iioor A of the car. v

The operation of the device will now be understood. The stove being in operation, We will presume the car, through collision or derailment or through any other accident, to receive such a shock as to tip over the stove or to throw the stove out from its proper place or to tilt it upon its base or in any other Way to be thrown into such position as would ordinarily cause it to spill out its lire or fuel where the same might cause a coniiagration. Such an accident would result as follows: Any tilting or dislodgment of the stove would carry with it the chemical fire-extinguisher; but the rods F3 would be held fast to the floor of the car. Consequently as the stove would tilt or'move from its place the strain thrown upon these rods would instantly open the valve f2 and the valves f. The acid would be thus precipitated into the alkalinewater retort, and the said water, impregnated with carbonio-acid gas, would be instantly eX- pelled through the pipes f onto the fuel within the re-pot, thus effectually and instantly eX- tinguishing the re.

G is an encircling band provided with suitable oritices, g, and preferably provided with a latch, g. This maybe revolved suiiiciently to view the condition of the interior of the stove at any time and then be returned, so as to close and lock the said opening.

`The draft may be provided in any convenient manner.

IOO

I would have it understood that I do not limit myself in the use of this invention to any particular kind of stove, nor to any particular location therein of the fire-extinguisher; but the arrangement here shown of the fire-extinguisher with respect to the stove proper is both practical and convenient. The location of the extinguisher within the stove is also desirable from another standpoint: its rods and valves are so located that they cannot be meddled with, and they are readily rendered automatic in their action.

I-l represents a partition or packing of asbestus, of fire-clay, or any other suitable nonconducting material, designed to shield the fire-extinguisher from the heat, which would -otherwise be radiated downward from above.

This may or may not be employed.

K is a sliding door, adapted to cover the opening into the fire-pot, and similar slides may be provided for the opening into the ash-pit and for the opening into the uptake, as shown at K K2. Rods k project downward therefrom and through the floor of the car in the same manner as before explained with the valve-rods, so that any tipping or tilting or dislodgment of the stove results in these doors K K2, &c., being instantly and permanently closed.

The stove is provided with a bottom, ZJ, and b represents nuts or stops on the operatingrods F3, &c. These stops are located a little above the bottom of the stove, so that as the -stove tilts these stops will come into contact with the bottom of the stove, thus preventing ltoo great a movement of the said rods. The

further tilting of the stove will tear the threads of the operating-rods from the door of the car.

L is an annular band adapted to open and close the orifice through which access may stove in place against lighter shocks and jars.-

What I claim isl. A safety car-heater consisting of the combination, with a car-stove, of a chemical fireextinguisher with discharge-pipes adapted to discharge its contents upon the bed of incandescent fuel, said chemical fire-extinguisher provided wit-h valves to govern the commingling of its contents and the opening of its discharge-pipes, said valves having valve-rods` connected with the floor of the car, the construction being such that as the stove is tilted or dislodged from place the strain upon said rods will bring the extinguisher into operation and open its discharge-pipes, substantially as and for the purpose described.

2. In a safety car-heater, the combination, with a car-stove and a chemical fire-extinguisher having pipes leading therefrom to the stove and adapted to discharge their contents upon the incandescent fuel, of valves situated in said pipes and connected to the car-Hoor by rods so arranged that the said valves will. be opened when the heater is tilted and dislodged from place, substantially as described.

In testimony whereof l sign this specification in lthe presence ofl two witnesses.

MYRON M. BUMPUS.

\Vitnesses:

ZINA BUCK, ROLLAND FLETCHER. 

